Which parameter set would produce a T1 weighted MRI?

Which parameter set would produce a T1 weighted MRI?

• A. TE: 60 TR: 600
• B. TE: 200 TR: 500
• C. TE: 175 TR: 1250
• D. TE: 25 TR: 1750

Answer: (A)

In T1-weighted MRI, contrast comes from differences in T1 relaxation, so you want a short repetition time (TR) and a short echo time (TE) to maximize T1 contrast and minimize T2 effects. The set with a TE around 60 ms and a TR around 600 ms uses the shortest combination of values that still keep the sequence primarily T1-weighted compared with the other options. The other choices push TE longer or TR longer, which shifts the weighting toward T2 or proton density rather than T1. So this parameter set best yields T1 weighting.

In T1-weighted MRI, contrast comes from differences in T1 relaxation, so you want a short repetition time (TR) and a short echo time (TE) to maximize T1 contrast and minimize T2 effects. The set with a TE around 60 ms and a TR around 600 ms uses the shortest combination of values that still keep the sequence primarily T1-weighted compared with the other options. The other choices push TE longer or TR longer, which shifts the weighting toward T2 or proton density rather than T1. So this parameter set best yields T1 weighting.